EC2 Snitch load imbalance

2014-10-28 Thread Oleg Dulin
I have a setup with 6 cassandra nodes (1.2.18), using RandomPartition, not using vnodes -- this is a legacy cluster. We went from 3 nodes to 6 in the last few days to add capacity. However, there appears to be an imbalance: Datacenter: us-east == Replicas: 2 Address Rack

Re: EC2 Snitch load imbalance

2014-10-28 Thread Mark Reddy
Oleg, If you are running nodetool status, be sure to specify the keyspace also. If you don't specify the keyspace the results will be nonsense. https://issues.apache.org/jira/browse/CASSANDRA-7173 Regards, Mark On 28 October 2014 10:35, Oleg Dulin oleg.du...@gmail.com wrote: I have a setup

Re: EC2 Snitch load imbalance

2014-10-28 Thread Oleg Dulin
Thanks Mark. The output in my original post is with keyspace specified. On 2014-10-28 12:00:15 +, Mark Reddy said: Oleg,  If you are running nodetool status, be sure to specify the keyspace also. If you don't specify the keyspace the results will be nonsense.

Re: EC2 Snitch load imbalance

2014-10-28 Thread Robert Coli
On Tue, Oct 28, 2014 at 3:35 AM, Oleg Dulin oleg.du...@gmail.com wrote: I have a setup with 6 cassandra nodes (1.2.18), using RandomPartition, not using vnodes -- this is a legacy cluster. We went from 3 nodes to 6 in the last few days to add capacity. However, there appears to be an

Ec2 snitch with network topology strategy

2011-06-29 Thread pankajsoni0126
I was thinking of leveraging ec2 snitch. But my question is then how do I give replica placement options? Or can I give snitch as ec2snitch and write the nodes cassandra-topology.prop and in give locator strategy at time of creating keyspace as network topology strategy. But will it work

Re: Ec2 snitch with network topology strategy

2011-06-29 Thread pankaj soni
Hmm... Just tested the config. It works, got confused with the options, my bad. On Wed, Jun 29, 2011 at 2:26 PM, pankajsoni0126 pankajsoni0...@gmail.comwrote: I was thinking of leveraging ec2 snitch. But my question is then how do I give replica placement options? Or can I give snitch

Re: EC2 Snitch

2011-05-11 Thread Vijay
the DC and RAC only thing is that we have to allow IP's in the security groups to talk to each other's region. Regards, /VJ On Tue, May 10, 2011 at 6:19 PM, Sameer Farooqui cassandral...@gmail.comwrote: Has anybody successfully used EC2 Snitch for cross-region deployments on EC2? Brandon

EC2 Snitch

2011-05-10 Thread Sameer Farooqui
Has anybody successfully used EC2 Snitch for cross-region deployments on EC2? Brandon Williams has not recommended using this just yet, but I was curious if anybody is using it with 0.8.0. Also, the snitch just let's the cluster automatically discover what the different regions (aka data centers

Re: Cassandra Chef recipe and EC2 snitch

2010-07-25 Thread Benjamin Black
the link mentions an ec2snitch, but i don't. the cookbook can just generate property files for the propertysnitch (which i much prefer to the use of a dedicated snitch). the algorithm for decided locality is at least as dumb as the one in the rack-aware snitch. on the plus side, it's just a

Cassandra Chef recipe and EC2 snitch

2010-07-22 Thread Allan Carroll
Hi all, I'm setting up a new cluster on EC2 for the first time and looking at the wiki cloud setup page (http://wiki.apache.org/cassandra/CloudConfig). There's a chef recipe linked there that mentions an ec2snitch. The link doesn't seem to go where it says it does. Does anyone know where

Re: Cassandra Chef recipe and EC2 snitch

2010-07-22 Thread Dave Viner
You don't need the ec2snitch necessarily. AFAIK, It's meant to be a better way of detecting where your ec2 instances are. But, unless you're popping instances all the time, I don't think it's worth it. Check out the step-by-step guide on that same page. Pure EC2 api calls to setup your